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Screenshot of How fast is a Fidget Spinner?
How fast is a Fidget Spinner?
Screenshot of How many calendars are there?
How many calendars are there?
Screenshot of How they found the World’s Biggest Prime Number
How they found the World’s Biggest Prime Number
Screenshot of How thick is a three-sided coin?
How thick is a three-sided coin?
Screenshot of How to make a fold-and-cut bat for Halloween!
How to make a fold-and-cut bat for Halloween!
Screenshot of How to Make a Paper Snowflake
How to Make a Paper Snowflake
Screenshot of How to make an edge-coloured origami dodecahedron
How to make an edge-coloured origami dodecahedron
Screenshot of How to mathematically calculate a fall through the Earth
How to mathematically calculate a fall through the Earth
Screenshot of Is this the ultimate sine pattern?
Is this the ultimate sine pattern?
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